Finding the Fourth Proportional to 79,987.68, 110,380.86 and 44,175.14
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Solution
The fourth proportional to 79,987.68, 110,380.86 and 44,175.14 is: 60,960.51
Step by Step Solution
- Step 1: Write the proportion equation
79,987.68 : 110,380.86 = 44,175.14 : x - Step 2: Convert to fraction form
79,987.68/110,380.86 = 44,175.14/x - Step 3: Cross multiply
79,987.68x = 110,380.86 × 44,175.14 - Step 4: Simplify right side
79,987.68x = 4,876,089,943.82 - Step 5: Solve for x
x = 4,876,089,943.82/79,987.68 - Step 6: Final answer
x = 60,960.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.